12+[0.4*0.75+(0.5+?)*3]/0.3=98 等于几 9.81*0.1+0.5*98.1+0.049*9
来源:学生作业帮 编辑:百度作业网作业帮 分类:数学作业 时间:2024/07/24 10:37:49
12+[0.4*0.75+(0.5+?)*3]/0.3=98 等于几 9.81*0.1+0.5*98.1+0.049*981= 6789.6789/6.789=
每题简算
每题简算
1.原式=12+[0.3+(0.5+?)*3]/0.3=98
=12+[0.3+1.5+3?]=29.4
=13.8+3?=29.4
=3?=15.6
=5.2
2.原式=9.81*0.1+0.5*(9.81*10)+0.049*(9.81*100)
=9.81*0.1+9.81*(0.5*10)+9.81*(0.049*100)
=9.81*0.1+9.81*5+9.81*4.9
=9.81*(0.1+5+4.9)
=9.81*10=98.1
3.原式=6789.6789/6.789
=6789.6789/0.6789/10
=(6789+0.6789)/0.6789/10
=(6789/0.6789+0.6789/0.6789)/10
=(10000+1)/10
=10001/10=1000.1
=12+[0.3+1.5+3?]=29.4
=13.8+3?=29.4
=3?=15.6
=5.2
2.原式=9.81*0.1+0.5*(9.81*10)+0.049*(9.81*100)
=9.81*0.1+9.81*(0.5*10)+9.81*(0.049*100)
=9.81*0.1+9.81*5+9.81*4.9
=9.81*(0.1+5+4.9)
=9.81*10=98.1
3.原式=6789.6789/6.789
=6789.6789/0.6789/10
=(6789+0.6789)/0.6789/10
=(6789/0.6789+0.6789/0.6789)/10
=(10000+1)/10
=10001/10=1000.1
12+[0.4*0.75+(0.5+?)*3]/0.3=98 等于几 9.81*0.1+0.5*98.1+0.049*9
0.3等于百分之几 0.4等于百分之几 0.14等于百分之几 0.1等于百分之几
15比3等于几比1?2比0.5等于1.2比几?0.3/4等于几分之32?7/9比几等于1/2比3/5?几分之12等于3/
3/4:0.5等于几比几等于几分之几
12比9等于几比几等于3分之几
20分之几等于0.75等于12除几等于几分之9
-0.4x+0.9/0.5=0.2x+0.3/0.3+1d等于几
0.5平方千米等于几公顷和等于几平方米
0.5千克等于几吨等于几毫克
12除以几等于0.75
0.75等于12分之几
0.5立方米等于几升?